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在金刚石岩心钻探中,采用最高回转速度时发现,钻具振动加剧,钻杆耐磨性降低.由于单位时间内交变载荷随转速的提高成比例地增大,所以随着转速的提高,钻杆及其平接头连接处的疲劳强度降低了.可见,在最高转速工作条件下,钻杆及其接头应该加以改进,也就是说,钻杆及其接头应该用优质钢来制造.当前,这些问题要由有关科研机关与制造厂协作共同解决.钻探工作的直接操作者(工艺师与钻探工长)对于解决钻进中的振动问题,应起主要作用.由于钻具振动加剧,会使设备的
In the diamond core drilling, the highest rotational speed was found when the drill vibration intensified drill pipe wear resistance decreased due to the alternating load per unit time increased with the increase of the rotational speed increases, so as the speed increased, the drill The fatigue strength at the connection of the rod and its flat joint is reduced and it can be seen that the drill pipe and its joints should be improved at the highest rotational speed working conditions ie the drill pipe and its joints should be made of high quality steel.At present these The problem should be solved jointly by the relevant research institutes and the manufacturing plant, and the direct operators of the drilling work (technologists and drilling engineers) should play a major role in solving the vibration problems during drilling. Due to the vibration of drilling tools, the equipment of